Upsetting-machine.



R. L. WILCOX.-

UPSETTING MACHINE.

APPLICATION FILED Aue.23, 1915.

Patented Apr. 2, 1918.

- 3 SHEETS-SHEEI I.

| l l l l )l MOHWHHWHI WIHWMHM a 0 Q R. L. WILCOX.

' UPSETTING MACHINE.

APPLICATlON FILED M1613, 1915- LQ6LO84 Patented Ap 1918.

3 SHEETS- l 2.

R. L. WILCOX.

UPSETTING MACHINE.

APPLICATION FILED AUG.23. 1915.

1,261,084, Patented Apr. 2,1918.

4 3 SHEETS-SHEEI 3.

RICHARD LESTER WILCOX, OF WATERBURY BURY BARREL FOUNDRY AND MACHINE COM a coo TIOIN' OI CONNECTICUT.

, CONNECTICUT, ASSIGNOR TO THE WATER- F WA'IE'UBY, CONNECTICUT,

UPSETTING-MACHINE.

Specification of Letters Patent.

Patented Apt; a, rare.

Application filed August 28, 1915. Serial No. 46,938.

To all whom it may concern:

Be it known that I, RICHARD LEs'rER W11.- oox, a citizen of the United States, residing at Waterbury, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Upsetting-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to new and useful improvements in upsetting machines, and has for its object, among other things, to produce a device wherein blanks that are not of uniform shape or dimension may be produced with the same facility and economy as blanks have heretofore been made for bolts,

screws, etc., having shanks of substantially uniform diameter and cylindrical in cross section, or if not. of uniform diameter are tapered throughout their length, the sides thereof being straight without protuberances thereon. My invention, however, is not limited to the formation of such blanks, because it may be utilized in the manufacture of bolts of ordinary form and construction.

To these and other ends, my invention consists in the upsetting machine having certain details of construction and combinations of parts, as will be hereinafter described and more particularly pointed out in the claims.

Referring to the drawings, in which like numerals of reference designate like parts in the several figures;

Figure 1 is a plan view partly in section of one form of upsetting machine, arranged to produce the results intended by my invention;

Fig. 2 is a fragmentary, longitudinal elevation thereof; I

Fig. 3 is a transverse sectional view taken substantially upon line AB of Fig. 1;

Fig. dis an enlarged plan view of the dies in their open position and some adjacent mechanism;

Fig. 5 is a fragmentary, face view of the die holder with the dies therein and some of the adjacent parts, looking toward Fig. d

from the right thereof;

Fig. 6 isan elevation of one of the die sections, looking toward the flat face thereof;

'Fig. 7 is a perspective view of one of the die wedges;

Figs.'8 toll inclusive are'side and end views respectively of one form of blank as presented to the dies, its finished shape, and the successive forms it assumes during the process of completion; and I Fi s. 12, 13 and 14 are views of a form of blan c that may be produced in my improved header, this particular form being illustrated to show a blank with a lug or protuberance upon one side only. I y

In the practice of my invention I am enabled to utilize a header of the usual form and construction with but slight modifications therein to accommodate the punch and die mechanism, that is especially applicable for the production of blanks of the character described. Therefore, merely for the purpose of illustration, I have shown one form of header with which my mechanism may be conveniently applied, and as illustrated in the drawings, the numeral 1 designates the body of a header, 2 a crank shaft, rotatably mounted therein, and 3 a gate connected with the crank shaft by a pitman 4 and from whichit receives a reciprocatory move ment toward and away from the dies. Within the gate 3 is a punch slide 5, deriving a vertical movement therein from a rotary cam 6, a rock member actuated from said cam by a lever 8 and having an arm 9 thereon connected with said slide, as shown in Fig. 2. This method of imparting a vertical movement to the punch slide during the reciprocation of the gate is not new in this invention or essential thereto, as any other form of mechanism for accomplishing this purpose is equally applicable.

Fixed to the bed 1 is a hopper 10 having a chute 11 leading downwardly therefrom, and both of which may be of any preferred form. The blanks are placed indiscriminately in the hopper and pass therefrom down the chute 11, where they are successively transferred one by one to the dies. This transfer mechanism consists of a slide ,12 vertically movable within the bed 1 through a rock member 13 having connection therewith through a roll 14 and slide block 15 mounted within the arm 16 on said rock having a rotary member, which is operated from the cam 6 by the connection 17.v Any other means may be substituted for imparting a vertical reciprocatory movement to the slide 12, as the details of this mechanism are not essential. Mounted within the bed 1 is a rod 18 and reciprooatory movement thereln and upon the outer end of which is an arm 19 that has a connection 20 with the slide 12 so that during the movement of the latter the shaft 18 is rotated and the arm 19 moved from its position shown in Fig. 3 to a position, wherein the axis of the carrier sleeve 21 is coincident with the axis of the dies, as shown in Fig. 4, this movement transferring a blank from the chute 11 and presenting it to said dies. The sleeve 21 has an opening therein of substantially the same diameter a 'one end of the blank, and its outside diameter is substantially the same as the open end of the recess in the die sections, hereafter to be described.

A reciprocatory movement is imparted to said shaft 18 and the arm 19 through a rock shaft 22 having a connection through a pivotally mounted joint block 23 with said rod 18, and actuated from a cam (not shown) in the face of the gear 24 by a connection 25 adjustabl secured to the arm 26 upon the rock sha t 22 through the 1am nuts 27.

The numeral 28 designatesthe die block, which is mounted within the bed against the backing plate 29 and secured aga nst movement in any of its adjusted positions by a key 30. Extending through said d1e block is a tapered hole 31, the larger; end thereof being toward the gate 3 and within which are slidably mounted the two die sections 32. Each of these die sections are shown as semi-circular in cross section, hav ing the same taper s that of the tapered hole 31 and having a flat inner face 33 but they may be angular in cross section if desired. When the faces 33 are in contact with each other the two die sections 32 as a unit are circular in cross section. These sections are held in proper relation to each other by a dowel pin 34, which'is preferably, but not necessarily, fixed in one of said die sections and slides within the other. This dowel pin is shown in Fig. center of the die section, but it may be shifted to any other position. if desired, one of such positions being illustrated by the broken lines 63 in said figure. The outward position of the die sections is limited by the engagement of the enlarged head 35 thereon w1th the rear face of the die block 28. as shown in Fig. 4.

In each of the flat faces 33 there are blank forming recesses 36 that open into the outer face of said die sections and are of substantially the same shape s the longidie 6 as being in the tudinal one-half of the finished blanll. The die sections are moved within the die block toward the gate 3 by a rod 37 shdably mounted within the bed 1 and abutting against the rear end of said die sections substantially as shown in Fig. 1, which rod is moved toward the gate 3 by a cam 38 or other rocking member, through a connection 39, slide 40, rock lever 41 pivotally connected to the bed 1 by the pintle 42, and the stud 43 that abut against one end of said lever 41. As the stud 43 is threaded into the slide 40 the position of the outer end thereof may be varied in relation to the said lever.

During the movement slide 40 toward the left in Fig. 1, the rock lever 41 moves the rod 37 and the die sections 32 toward the gate 3. The die sections are separated during this movement by two wedges 44 that are secured within the die block 28 by the screws 45 and having wedge faces 46 thereon that lie within the grooves 47 in the opposite sides of the die sections 32. The walls 48 of the grooves 47 are substantially parallel with the tapered walls of the die sections, which taper is also the same as that of the wedge 46, so that as the die sections 32 are moved toward the gate 3, they are spread apart by reason of the engagement of the walls 48 with the wedge faces 46 of the key 44. This is a positive movement and insures the separation of the die sections'32 and the creation of an open space between the faces 33 thereof while said sections are moving toward the gate 3. j

Mounted within the punch slide 5 are the upsetting punches 50 and 51 and the die punch 49; In the face of the die punch 49 is a. slot 52, as shown-in Fig. 2, which is of sufficient width to permit the entrance of the outer end of the arm 19.

of the rod 39 and In operation the die sections are first moved, as above described, toward the gate 3, which is in its retracted, or substantially retracted position, that is, at a point most distant from said die sections, and during this movement the arm 19 moves in a rotary path and carries a blank from the hopper so that the axis thereof is substantially concentric with the axis of the die sections 32 when in their closed position. During the last portion of the forward movement of the die sections they move upon either side of the blank, designated by the numeral 53 in Fig. 4, so that said blank lies between the faces 33 thereof. The gate 3 then moves forward and the end of the die punch 49 engages the outer ends of the die sections 32, straddling the arm 19 which lies within the groove 52 and forces said die sections rearwardly through the die block 28, and by en- 32, said die sections are moved toward each other until the faces 33 thereon are brought into contact with each other. During this movement, the arm 19 travels in a straight line with the die punch 49 and die sections 32, and the rod 37 is movedv rearwardly and rocks the lever 41 which thereby maintains its contact with the stud 43. When the die sections have been moved to this rearmost position the gate 3 is withdrawn, the arm 19 moves in a straight line away from said die sections and then in a rotary path untilthe outer end thereof is substantiallyin line with the chute 11 to receive another blank.

gages and upsets the blank and causes it to assume its finished form. This last punch by its engagement with the endof the blank, and a slight excess of metal on said blank, provided for the purpose, crowds into the end thereof substantially as shown in Fig. 11, and as it is withdrawn carries with it the finished blank. During the next for-.

ward movement of the gate, and when the die punch 49 contacts with the 'die sections 32, the finished blank upon the end of the punch 51 is brought against the angular face 54 upon the lower end of the die block 28, and by reason thereof is stripped from said punch and drops therefrom into a receptacle conveniently located to receive it.

It will be observed from Figs.,9, lO-and 11 that a portion of the blank is elliptical in cross section, while in Fig. 8, which illustrates the blank as presented to the dies, the

same is cylindrical at all points in cross sectlon.

In Fig. 9 a view of the blank is shown as produced by the movement of the die sections rearwardly .and toward each otherthrough the action of the die punch 49. This action compressing what might be designated as the shank 55 of the blank into elliptical form substantially as shown in Fig. 9, the metal flowing into the recess 36 to produce this result. punch 50 engages the opposite end thereof causing the blank to swell into the enlarged portion of the recess 36 and partially form the enlargement 56. If this enlargement is not very great in proportion to the size of the blank, the action of one punch may be sufficient to form it, but if it requires a considerable flow of metal, then one or more subsequent operations may be required, and as lllustrated herein, this is performed by the punch 51 which engagesthe end of the blank in the same manner as the punch 50 and further upsets the metal which then the finished article,

Thereafter the completely fills the recess 86. The blank is withdrawn from the die sections 32 upon the end of the punch 51 because the said sections travel, through the action of the rod 37, at the same speed as said punch, and the die sections 32 are moving away from each other through the actionof the wedge 34. When the forward movement of the die sections is completed, ,the blank lies between the faces 33 upon the end of the punch 51 and is entirely free from the recess 36.

A spring 57 is inserted 'infthe' end of the stud 43'so as to exert its tension on the rock lever 41 to yieldingly holdsaid lever against the rod 37, thereby insurin a constant en- 3 gagement of'the bottom on s of the recesses 36, designated 58 herein with the end 59 of which is'her eby always being forced against the end of the punch 51 and maintained in this relative position while the die'sections are being separated.

The die block 28 is adjusted vertically by the screw 60 threaded through a lu 61 on the bed 1 and bearing against the ead of the screw 45 and is locked in its several adjusted positions by the wedge 30, as hereto fore indicated.

I have illustrated in Figs. 8 to 11-iI1- elusive only one form of blank that is produced with my invention and this without fanciful design or. configuration upon the exterior thereof, but I desire it to be understood that this is for illustration purposes only, as the various shapes of the finished blanks are unlimited in number and may, be provided upon their exterior with any fanciful design that maybe formed within the recesses in the die sections.

In Figs. 12' to 14 inclusive I have illustrated a form of blank that may also be produced and differs essentially from the blank shown in Figs. 8 to 11, in that it has a protuberance or lug 64 upon one side thereof. Blanks with a plurality of protuberances of varying forms and shapes 116' may be formed equally as well as the one just described.

It is'obvious that an ordinary blank, with a straight shank and a head of usual form, can be formed with this device, by simply I15 providing a straight recess in the die sections with a head recess at the other end, in which case the blank is not upset by the movement of the die sections toward each other, but only by the punches that will 120 form a head thereon, as is common in the art.

There are minor changes. and alterations that can be made withinmy invention, aside from those herein suggested, and I would 1 therefore have it understood, that I do not limit myself to the exact construction herein shown and described, but claim all that falls fairly within the spirit and scope of the appended claims. no

aacnosa Having described my invention, what I at a point distant therefrom; of means for claim as new and desire to secure by Letmoving said die sections toward each other ters Patent, is and thereby upsetting a blank within sai 1. In mechanism of the character d erecesses between said die sections; and punch -5 scribed, the combination with die sections, mechanism subsequently engaging the outer 70 open only at one end; of means for moving end of said blanks and passing through the said sections toward and away from each outer open end of said recesses. other, and while moving toward each other 6. In mechanism of the character deupsetting a blank therebetween; and punch scribed, the combination with die sections,

mechanism for further upsetting said blank each of said sections having a recess therein; 75

by engagement with the end thereof while of means for moving said sections toward said blank is between said die sections, the and away from each other and while moving pressure for this latter upsetting being aptoward each other upsetting a blank thereplied at substantially a right angle to the between; punch mechanism for further uppressure for the first upsettmg. setting said blank by engagement with the 80 2. In a header, the combination with die end thereof, while said blank is between said sections; of means for moving said sections die sections, and for stripping said blank toward and away from each other and while from said die sections while the same are moving toward each other upsetting a blank being separated, that portion of said punch therebetween; punch mechanism for further mechanism performing the stripping opera- 5 upsetting said blank by engagement with tion comprising an upsetting punch; and the end thereof while said blank.is between means for holding said. blank between the said die sections and for stripping said end of said punch and the end of the recess blank from said die sections while said die in said die sections during the first portion sections are being separated. of the movement of the die sections away 3. In mechanism of the character defrom each other. scribed, the combination with die sections; 7. In mechanism of the character deof means for moving said sections toward scribed, the combination with die sections;

and away from each other and while movof a wedge member for separating said die 30 ing toward each other upsettin a blank sections from each other; and punch mechtherebetween; punch mechanism or further anism for moving said die sections in a pat upsetting said blank by engagement with at substantially a right angle to their path the end thereof while said blank is between of movement when actuated by said wedge said die sections and for stripping said member.

'35 blank from said die sections while said die 8. In an ope die mechanism of the charsections are bein separated; said means acter described, the combination with means holding the blanic against the end of a fo feeding a blank thereto; of movably punch forming part of said punch mechamounted die sections; positive means for nism during the movement of said die secsynchronously moving each of said die sec- 40 tions away from each other; and means for tions away from the other, and in a path stripping said blank from said punch. substantially parallel with the blank, while 4:. In mechanism of the characte de, being fed as above described; and means for scribed, the combination with die sections; so m n ing S id dies that the heading presof means for moving said sections toward sure thereon will have a tendency to main- 45 and away from each other nd whil ovtain the dies in their closed relation.

ing toward each other upsetting a blank 9. In an open die header, the combinatherebetween; punch mechanism for further tion wlth die sections; of a reciprocating upsetting said blank by engagement with punch cooperating therewith; and positive the end thereof while said blank is he means for opening and closing said die sec- 50 tween said die sections and for stripping tions while traveling in a dlrectlon substansaid blank from said diesections while said tially parallel wlth said punch. die sections are being separated, the blank 1 In mechanism of the Character debeing held against the end of a punch formscribed, the combination with die sections, ing part of said punch mechanism during each having one substantially flat face there- 55 the movement of said die sections away from on, with a recess therein; means for syneach other; and means for stripping said chronously moving said die sections substanblank from said punch, comprising a fixed tially parallel with said face; and means member in the path of said blank while for moving said die sections at substantraveling with said punch. tially a right angle to said face, the latter 60 5. In mechanism of the character demeans comprising in part independently acscribed, the combination with die sections tuatedreciprocatory members having anhaving recesses inthe opposite faces thereof, gagement with said die sections at the opposaid recesses opening through only one end site ends thereof. of said die sections and at said open end, 11. In mechanism of the character de 65 being of smaller area in cross section than scribed, the combination of. compression (110 tweet sections open only at one end and movable in a path substantially parallel relatively to each other, a punch acting in conjunction with said compression die to form the article and providin means for extracting the finished article mm between said die sections. I

12. In a mechanism of the character described, the combination'of a plurality of movable dies; a punch acting in conjunction with said dies to form an article and serving to hold the finished article thereon after the same has been formed by said dies and finally acting as a conveyer to carry such article away from the dies.

13. In mechanism of the character described, the combination of a plurality of movable dies, a punch acting in conjunction with said dies to form the article, and means for actuating said punch whereby it will hold the article against the end of the recess in said die, while the said dies are being moved therefrom.

14. In mechanism of the character described, the combination with a plurality of dies; of punch mechanism operating in conjunction with said dies to form an article, and means for actuating said dies and punch mechanism, whereby the said punch mechanism will, while being withdrawn carry the finished article from between said dies.

15. In mechanism of the character described, the combination of a plurality of die sections closed at one end, means for opening and closing said die sections, a punch operatively associated with said dies and arranged to impart end pressure to the article within the die while said dies are opening, thereby effecting self-stripping of the dies.

16. In mechanism of the character described for making articlesas described, the

combination with a plurality of compression dies having tapered outer surfaces sliding in an opening in a die block having corresponding' surfaces for positively closing the die sections, and means, comprising stationary wedges for positively opening said dies and a punch acting in conjunction with said dies to form the article and to extract the finished article therefrom.

17 In mechanism of the character described, the combination with die sections open at one end only, permitting the-insertion of a blank, means positively effecting a reciprocating parallel movement of the die sections relatively to each other and a punch acting with said die sections to form the finished blank and to hold the said blank in a suspended position when the die sections are stripped and finally withdrawing said blank through the open end of the (he sections.

18. In mechanism of the character described, a punch mechanism, die sections, a block holding said die sections therein, means provided for moving said die sections in a path longitudinally within said block and in a path substantially parallel to each other, and mechanism for feeding a blank to said die sections, the blank being fed into and removed from said die sections at the same end thereof.

19. In mechanism of the character described, a reciprocating gate carrying a slide provided with a plurality of punches, a

block, die sections having the extenor surface tapered and fittin in a correspondingly tapered hole in said b ock, stop means connected with said die sections for limiting the movement of said die sections in one direction, wedges for opening said die sections to receive and release a blank, and mechanism acting in sequence to feed a blank to said die sections, close the latter, operate the said reciprocating gate so as to perform successive operations with each of said punches, opening said die sections and finally stripping the finished blank from the die sections.

In testimony whereof I have hereunto ailixed my signature.

RICHARD LESTER wrnoox. 

